ORTHO PEDO Sample Questions Flashcards
which of the following statements regarding crowding of the dentition is TRUE?
A. crowding of the primary dentition usually resolves as the permanent teeth erupt
B. spacing in the primary dentition usually indicates spacing will be present in the adult dentition
C. approximately 15% of adolescents have crowding severe enough to consider extraction of permanent teeth as part of treatment
D. lower incisor crowding is more common in african american individuals than white individuals
C
bones of the cranial base include which of the following? A. maxilla, mandible, and cranial vault B. ethmoid, sphenoid, and occipital C. palatal, nasal, and zygoma D. frontal and parietal
B
according to scammon’s growth curves, which of the following tissues has a growth increase that can be used to help predict timing of the adolescent growth spurt?
A. neural tissues
B. lymphoid tissues
C. reproductive tissues
C
children in the primary dentition most often present with a(n) \_\_\_ A. increased overbite B. decreased overbite C. ideal overbite D. significant open bite
B
an adult patient with a class II molar relationship and a cephalometric ANB angle of 2 degrees has which type of malocclusion? A. class II dental malocclusion B. class II skeletal malocclusion C. class I dental malocclusion D. class I dental malocclusion
A
which of the following reactions is LEAST likely to be observed during orthodontic treatment?
A. root resorption
B. devitalization of teeth that are moved
C. mobility of teeth that are moved
D. development of occlusal interferences
B
doubling the force applied at the bracket of a tooth would have what effect on the moment affecting tooth movement? A. the moment would decrease by 50% B. the moment would not change C. the moment would double D. the moment would increase fourfold
C
class II elastics are used by stretching an elastic between which of the two following points?
A. from the posterior to the anterior within the maxillary arch
B. from the posterior to the anterior within the mandibular arch
C. from the posterior of the maxillary arch to the anterior of the mandibular arch
D. from the posterior of the mandibular arch to the anterior of the maxillary arch
D
when class III elastics are used, the maxillary first molars ___
A. move distally and intrude
B. move mesially and extrude
C. move mesially and intrude
D. move mesially only; there is no movement in the vertical direction
B
what is the usual order of extraction of teeth if serial extraction is chosen as the treatment to alleviate severe crowding?
A. primary second molars, primary first molars, permanent first premolars, primary canines
B. primary canines, primary first molars, permanent first premolars
C. primary first molars, primary second molars, primary canines
D. primary canines, permanent canines, primary first molars, permanent first premolars
B
a 7-year old patient has a 4mm maxillary midline diastema. which of the following should be done?
A. brackets should be placed to close it
B. a radiograph should be taken to rule out the presence of a supernumerary tooth
C. nothing should be done. it will close on its own
D. nothing should be done. treatment should be deferred until the rest of the permanent dentition erupts
B
reduction of overbite can be accomplished MOST readily by which of the following tooth movements?
A. intruding maxillary incisors
B. uprighting maxillary and mandibular incisors
C. using a high pull headgear to the maxillary incisors
D. using a lip bumper
A
congenitally missing teeth are the result of failure in which stage of development? A. initiation B. morphodifferentiation C. apposition D. calcification
A
during an emergency dental visit in which a tooth is to be extracted because of extensive pulpal involvement, a moderately developmentally challenged 5 year old child becomes physically combative. the parents are unable to calm the child. what should the dentist do?
A. discuss the situation with the parents
B. force the nitrous oxide nosepiece over the child’s mouth and nose
C. use the hand over mouth exercise (HOME)
D. use a firm voice control
A
which of the following is the definition of conscious sedation?
A. a minimally depressed level of consciousness that retains the patient’s ability to maintain an airway independently and continuously and respond appropriately to physical stimulation or verbal command
B. a significantly depressed level of consciousness in which the patient’s ability to maintain an airway independently and continuously and respond appropriately to physical stimulation or verbal command is retained
C. a minimally depressed level of consciousness in which the patient’s ability to maintain an airway independently and continuously is retained
D. a significantly depressed level of consciousness in which the patient’s ability to maintain an airway independently and continuously is retained
A
